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Finding the Fourth Proportional to 93,444, 128,952.84 and 59,910

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Solution

The fourth proportional to 93,444, 128,952.84 and 59,910 is: 82,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,444 : 128,952.84 = 59,910 : x
  2. Step 2: Convert to fraction form
    93,444/128,952.84 = 59,910/x
  3. Step 3: Cross multiply
    93,444x = 128,952.84 × 59,910
  4. Step 4: Simplify right side
    93,444x = 7,725,564,644.40
  5. Step 5: Solve for x
    x = 7,725,564,644.40/93,444
  6. Step 6: Final answer
    x = 82,675.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.